Control circuit and control method for adjusting fill-in light according to quality of captured image

Abstract

The invention discloses a control circuit for adjusting fill-in light according to quality of a captured image. The circuit comprises a power module and a fill-in light module. The circuit further comprises a main control module and a parameter adjustment module. The power module is respectively connected with the main control module, the fill-in light module and the parameter adjustment module; and the main control module is further connected with the parameter adjustment module. The invention further discloses a control method for adjusting fill-in light according to the quality of the image. According to the method, after a plurality of interfaces are connected with an external network camera, the main control module reads an image quality parameter of the external network camera; and the on-off and the illumination intensity of the fill-in light are automatically adjusted according to the change of the parameters.

Description

technical field [0001] The invention belongs to the field of monitoring equipment manufacturing, and in particular relates to a control circuit and a control method for adjusting supplementary light according to picture quality. Background technique [0002] Surveillance cameras are used in the field of security monitoring and protection. Cameras used in the field of home use are required for 24-hour monitoring. A supplementary light is designed on the camera to supplement light at night to meet the monitoring needs in dark conditions. Light sensors are usually used to sense external light. Control the opening and closing of the fill light. [0003] For example, the patent application document with the patent application number "201720555811.7" discloses a camera and its supplementary light device. The supplementary light device includes a supplementary light lamp, a dimming drive circuit, photosensitive electronic components and a controller; The light is electrically conn...

AI Technical Summary

Problems solved by technology

When the light is turned on, the floating objects in the air will form light fog under the light and affect the image quality, which will affect the image quality of the camera instead.

Therefore, when the ambient light in the monitoring area can still meet the recording requirements, turning on the lights will not only affect the image quality, but also reduce the service life of the lights and increase power consumption.

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